180 U. S. NATIONAL MUSEUM BULLETIN 216 



(Townes). cf, reared from Ephestia figulilella, Exeter, Calif., Dec. 

 23, 1950 (Washington). 9, Fairfield, Calif., July 6, 1954, E. Megger 

 (Davis). cf , Glendale, Calif., July 1941, E. I. Schlinger (Townes). 

 9, same data as type (Townes) . cf , reared from E. figulilella, Lind- 

 say, Calif., Dec. 23, 1951 (Washington), cf , 9, reared from larva of 

 E. figulilella, Orange Cove, Calif., Jan. 24, 1940, Mr. Kaloostian 

 (Washington), cf , San Diego, Calif., July 1, 1940 (Townes). cf, in 

 light trap, Woodland Calif., July 27, 1956, Jack Fowler (Davis). 

 9, Algoma, Klamath Falls, Oreg., Sept. 2, 1950, Joe Schuh (Townes). 

 cf , 5 miles south of The Dalles, Oreg., May 5, 1938, K. Gray and J. 

 Schuh (Corvallis). 4cf, Ontario, Oreg., Aug. 21, 1940, H. and M. 

 Townes (Townes). 3cf , Wawai, Wash., May 20, 1911 (Cambridge). 

 This species occurs in Washington, Oregon, and California. We 

 have collected it among semidesert shrubbery. It has been reared 

 as a parasite of Ephestia figulilella, which feeds on dried fruit. 



II. MITRATUS GROUP 



Front wing 4.5 to 6.3 mm. long; head rather large; face broad, 

 strongly punctate, in profile evenly and strongly convex or a little 

 flattened centrally, its interantennal process very long, curving back- 

 ward between the antenna to nearly touch or to fuse with frons, 

 between the process and the frons a thin lamella; frons with a weak 

 bulge just below the ocelli; cheek about 0.5 as long as basal width of 

 mandible; occipital carina strong and complete above, weaker dorso- 

 lateral^, and absent below; clypeal margin broadly truncate; mandi- 

 ble rather large but otherwise normal for the genus; head black, the 

 interantennal process, upper lateral corner of face, often entire upper 

 margin of face, and small spot at top of eye whitish; notaulus com- 

 pletely lacking; metapleurum usually with a few discal hairs; costula 

 present or absent; second lateral area of propodeum with rather 

 sparse, evenly scattered hairs; apical transverse carina of propodeum 

 complete; nervulus beyond basal vein by about 0.3 its length; front 

 spur of middle tibia about 0.6 as long as hind spur; second segment 

 of middle tarsus about 1.1 to 1.5 as long as wide in male, about 1.0 

 to 1.4 as long as wide in female; hind tibia fulvous or blackish, some- 

 times faintly paler at the base; first tergite 1.6 to 1.9 as long as it 

 is wide at laterobasal corners; second tergite about 0.68 as long as 

 wide, with rather coarse punctures of which the interspaces are about 

 equal to the diameter; epipleurum of third tergite very broad (almost 

 reaching the midline), broadest subapically from which point it 

 narrows somewhat anteriorly, with a broadly rounded anteromesal 

 corner. 



This group contains two Holarctic species, as treated below. 



